Quick lock door securer



Jan. 24, 1961 L. J. SCHETTL 2,969,253

QUICK LOCK DOOR SECURER Filed Sept. 14, 1959 a 2 i O INVENTOR. Lows J.SCHETTL ATTORNEY United States Patentice QUICK LOCK DOOR SECURER LouisJ. Schettl, 1012 Columbus St., Two Rivers, Wis.

, 7 Filed Sept. 14, 1959, S61. N0. 839,779

' 8 Claims (Cl. 292-294 This invention relates to a portable doorsecuring device and more particularly to such a device which includes aquick lock feature.

The object of this invention is to provide an inexpensive portable doorsecuring device which is quick lockmg.

This object is accomplished by providing four basic parts which includea bar with a toothed edge and a lug at one end for engagement with thekeeper-plate of a door latch, an externally threaded member which isnoranally freely slidable on the bar, an internally threaded knobmounted on the externally threaded member, and a block slidably mountedon the bar between the lug and knob. This block may be omitted ifdesired by providing the knob with a resilient face for bearing directlyagainst a door to be secured.

In order to secure a door. the knob is gripped and moved toward the dooruntil it shoves the block into contact with the door. At this point theslidable member drops into engagement with one of the teeth on the bar.

Then the knob is rotated to force the slidable block against the doorwith the desired force.

This device improves on other quick locking devices in that it has bothrough and fine adjustments for positioning it with respect to the door,thereby quaranteeing that it will bear against the door with enoughpressure to hold the door shut, but gently enough not to mar it. Therough adjustment is made by moving the knob and element to the properpoint for engagement with a tooth on the bar, as described above, andthe fine or Vernier adjustment is made by rotating the knob until justthe right pressure is exerted against the door.

Other objects and advantages will be apparent from the followingspecification and claims in which:

Fig. 1 is a top view of a door securer operatively mounted to hold adoor closed;

Fig. 2 is a sectional view taken on line 2-2 in Fig. 1 showing theengagement between the toothed bar and normally slidable member when thedoor securer is in operative position;

Fig. 3 is a sectional view showing the door securer in inoperativeposition;

Fig. 4 is an enlarged view of the left end of the slidable member;

Fig. 5 is an enlarged view of the right end of the slidable member.

Referring to the drawings, a grippe r bar has a lug 12 on one end whichengages a keeper-plate 14 on a door frame 16.

An externally threaded member 18 is normally, meaning when the device isnot holding the door 20 closed, freely slidable on bar 10. Member 18includes a threaded shell 22 and end discs 24 and 26. Disc 24 has a slot28. Disc 26 has a slot 30 which extends to' the outer edge of disc 26and which is aligned with slot 28 to receive bar 10 to permit member 18to be mounted on the bar. It is not essential that these slots both lieon a diameter of the end discs as shown in the drawing,

Patented Jan. 24, 1961 so that the member will normally occupy a cantedposition with respect to bar 10, as shown in Fig. 3, so that disc 26 canclear the teeth 32 on the bar. In moving member 18 toward handle 34, themember can be lifted over the catching edges 36 of the teeth tofacilitate movement. However, this tends to force disc 24 down intoengagement with the catching edge of another tooth. To prevent this, aramp 38 is mounted inside member 18 so that disc 24 is cammed over thecatching edges of the teeth. Mounting the member 18 in a canted positionwith respect to bar 10 is necesary to achieve the quick lock action ofthis device which will next be described.

An internally threaded knob 40 is screwed onto member 18. Knob 40includes a pressure wall 42 which has an aperture 44 through which bar10 passes. A freely slidable block 46 of resilient material such aswood, plastic or hard rubber is mounted on the bar between lug 12 andknob 40, so that the knob can be moved toward the door until block 46 iscaught between the door at one end and the pressure wall 42 at the otherend. When the parts of the device are moved into this position, disc 26drops into engagement with a catching edge 36 of one of the teeth sothat member 18 assumes the uncanted position shown in Fig. 2. The knobis then rotated and this forces block 46 against door 20 and frame 16with a force suflicient to securely hold the door closed.

It will be appreciated that this construction permits the door securerto be quickly put into use and is also very economical in that itincludes only four simple and inexpensive parts.

I claim:

1. A quick lock door securing device comprising, a. gripper bar adaptedat one end to engage the keeper-plate of a door latch, an externallythreaded member nor mally free'y slidable on said gripper bar, a blockslidably mounted on said bar between said one end and said member, aninternally threaded knob threadably mounted on said member to projectbeyond the end of said member which is next to said block, catch meanson said bar, and engaging means on said member operative to engage saidcatch means when said block is pushed against a door by said knob.

2. The combination according to claim 1 in which said catch meanscomprises a plurality of teeth on one edge of said bar with each toothhaving a catching edge.

3. The combination according to claim 2 in which said engaging meansincludes a disc in one end of said member having a slot in which saidbar is mounted so that as said knob is rotated the disc bears againstone of said catching edges to stop the member in place on said bar sothat said block is forced against the door to be secured.

4. The combination according to claim 3 in which said member includes asecond disc at its other end having a slot in which said bar is mounted,and a ramp inside said member adjacent the toothed edge of said barwhereby said teeth cannot engage said second disc.

5. A quick lock door securing device comprising, a gripper bar having alug at one end for engaging the keeper-plate of a door latch, expansivemeans movably mounted on said bar, said expansive means including anexternally threaded member slidably mounted on said bar, and aninternally threaded knob threadably mounted on said member, said knobhaving an end projecting beyond the end of said member toward said lug,and stop means on said bar for engaging said expansive means wherebysaid means can be expanded between said stop means and a door to holdthe door shut, said stop means including a plurality of teeth on oneedge of said bar with each tooth having a catching edge.

6. The combination according to claim 5 in which said member includes adisc in one end having a slot in which said.- bar is nlcmnteclv so. haas. s id; kno is ro ated said disc bears against one of, said catchingedges to; stop said member in place on said" bar: so that said, knobtransmits a closing force, to, the door being sccm'ed.

7 The combinationv according to claim 6; in which said member includes asecond disc at its other endhaving a slot in which said bar is mounted,and a ramp inside said, member adjacent the toothed edge; of saidbarwhereby said teeth cannot engage said second disc.

8. The combination according to claim 5 in; which a resilient block isslidably mounted on said bar between said lug and said knob.

References Cited in the file of this patent UNITED STATES PATENTS NoelDec. 3,

Hayilancl V Feb. 20,

Mcnchen Sept. 29,

FOREIGN, PATENTS Italy A g- 3

